Physics, 07.10.2021 15:40, capricorn0115

When sediment is moved around by wind it is called?

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Physics, 22.06.2019 15:20, ineedhelp2285

Aphoton is absorbed by an electron that is in the n = 3 state of a hydrogen atom, causing the hydrogen atom to become ionized. very far away from the nucleus, the released electron has a velocity of 750,000 m/s. what was the wavelength of the absorbed photon?

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Physics, 22.06.2019 16:20, adiafloresp2dkbx

Specific heat refers to the amount of heat required to change 1 gram of a substance by degree(s) celsius

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Physics, 22.06.2019 18:30, winterblanco

Jenny wants to test the electrical conductivity of two substances dissolved in water. she is preparing the containers for the experiment. which factor is most important for her to control? a) volumes of the solutions b) appearance of the solutions c) temperatures of the solutions d) concentrations of the solutions

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Physics, 22.06.2019 23:50, jazzzzhands21

An alpha particle with kinetic energy 12.5 mev makes a collision with lead nucleus, but it is not "aimed" at the center of the lead nucleus, and has an initial nonzero angular momentum (with respect to the stationary lead nucleus) of magnitude l = p0 b, where p0 is the magnitude of the initial momentum of the alpha particle and b=1.40×10−12 m. (assume that the lead nucleus remains stationary and that it may be treated as a point charge. the atomic number of lead is 82. the alpha particle is a helium nucleus, with atomic number 2.) what is the distance of closest approach?